What eduardo quisumbing medicinal plants?

Eduardo Quisumbing was a Filipino botanist and a leading expert in Philippine medicinal plants. He wrote several notable books on the subject, including:

- ""Medicinal Plants of the Philippines"" (1951)

- ""Plants Used in Philippine Folk Medicine"" (1957)

- ""Textbook of Philippine Botany"" (1978)

- ""Philippine Medicinal Plants"" (2009)

Quisumbing's work played a crucial role in documenting the medicinal properties of hundreds of Philippine plants, advancing the field of ethnobotany and contributing to the understanding and utilization of traditional Filipino medicine.